Asus Rampage IV Extreme, 32GB only sees 24GB

So I have an Asus Rampage IV Extreme motherboard, 3930K, Corsair H100 cooler.

I bought 8 x 4GB (32GB) 2133 Corsair Dominator GT ram.

When I put it in it only recognized 24 GB in the BIOS and OS.

Playing around with removing dimms and swapping dimms, I have determined (I think) that the inner two slots (the two closest to the CPU) do not recognize memory. That is, whether those two slots are filled or not does not have any impact on the amount of memory recognized.

Is it feasible that this is a hardware fault on those two slots on the motherboard? Could there be another explanation?

Best bet is to double check if your operating system is 32-bit versus 64-bit, as 32-bit will limit the amount of memory your system can recognize, and to check what kind of memory controller your processor supports.

it not a bad slot but the max the mb is going to see with that ram. if you look under the qual ram for that mb there are only a few dimms that are qual for all eight slots. I think your ram is one that good for 6 slots. or 24 megs. i would email asus to check.

Best bet is to double check if your operating system is 32-bit versus 64-bit, as 32-bit will limit the amount of memory your system can recognize, and to check what kind of memory controller your processor supports.

OS is irrelevant. It says in the BIOS the Total Memory incorrect, even before it has touched the OS.

You will need windows 7 professional 64-bit or windows 7 ultimate 64-bit, as Win7 home premium 64-bit only utilizes 16GB, while in this case it might be irrelevant,as it's already a problem in the bios.